Title: Non-synchronous vibration and lock-in regimes in coupled structures using reduced models
Authors: Byrtus, Miroslav
Dyk, Štěpán
Hajžman, Michal
Citation: BYRTUS, M. DYK, Š. HAJŽMAN, M. Non-synchronous vibration and lock-in regimes in coupled structures using reduced models. In Proceedings of the ASME Design Engineering Technical Conference. online: American Society of Mechanical Engineers (ASME), 2021. s. 1-10. ISBN: 978-0-7918-8547-5
Issue Date: 2021
Publisher: American Society of Mechanical Engineers (ASME)
Document type: konferenční příspěvek
URI: 2-s2.0-85119992565
ISBN: 978-0-7918-8547-5
Keywords in different language: non-synchronous vibration, lock-in, resonance, bifurcation
Abstract in different language: The contribution is aimed at phenomenological modelling and analysis of fundamental properties of non-synchronous vibrations in chosen coupled structures. A van der Pol reduced-order model is employed to simulate the aero-elastic interaction between flexible bodies and fluid. Non-synchronous vibration and frequency lock-in, along with hysteresis, are captured in the main resonance area. Moreover, the model reveals subharmonic resonances accompanied by the existence of unstable solutions and frequency lock-in. The study is further extended to investigate the dynamical behaviour of a coupled cyclic structure, where different modes of vibration due to the aero-elastic interaction are analysed.
Rights: Plný text není přístupný.
Appears in Collections:Konferenční příspěvky / Conference Papers (KME)

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